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A cross‐linking strategy can result in a three‐dimensional network of interconnected chains for the copolymers, thereby improving their mechanical performance. In this work, a series of cross‐linked conjugated copolymers, named PC2, PC5, and PC8, constructed with different ratios of monomers are designed and synthesized. For comparison, a random linear copolymer, PR2 is also synthesized based on the...
A photo‐ and electro‐thermal film can convert sunlight and electricity into heat to solve icing problems. Combination of them provides an efficient strategy for all‐day anti‐/de‐icing. However, only opaque surfaces have been reported, due to the mutual exclusiveness between photon absorption and transmission. Herein, a highly transparent and scalable solution‐processed photo‐electro‐thermal film is...
Radiative cooling shows great promise in eco‐friendly space cooling due to its zero‐energy consumption. For subambient cooling in hot humid subtropical/tropical climates, achieving ultrahigh solar reflectance (≥96%), durable ultraviolet (UV) resistance, and surface superhydrophobicity simultaneously is critical, which, however, is challenging for most state‐of‐the‐art scalable polymer‐based coolers...
Controlled morphology of solution‐processed thin films have realized impressive achievements for non‐fullerene acceptor (NFA)–based organic solar cells (OSCs). Given the large set of donor–acceptor pairs, employing various processing conditions to realize optimal morphology for high efficiency and stable OSCs is a strenuous task. Therefore, comprehensive correlations between processing conditions...
The thermal stability of high‐efficiency organic photovoltaics (OPVs) is critical to the manufacturing of this technology. Therefore, targeted strategies and approaches shall be developed to improve efficiency and stability, simultaneously. Herein, a seleno twisted benzodiperylenediimides (TBD‐PDI‐Se) acceptor‐doping strategy is taken advantage of to demonstrate the ternary bulk heterojunction OPVs...
In article number 2007011, Wei Ma and co‐workers achieve simultaneous enhancement of efficiency, deformability and mechanical stability of organic solar cells by modulating the intermolecular interaction through incorporating a ductile third component. This strengthened intermolecular interaction enables the optimized ternary system with better morphology stability against force and heat.
Promoting efficiency, deformability, and life expectancy of stretchable organic solar cells (OSCs) have always been key concerns that researchers are committed to solving. However, how to improve them simultaneously remains challenging, as morphology parameters, such as ordered molecular arrangement, beneficial for highly efficient devices actually limits mechanical stability and deformability. In...
It is a significant challenge to achieve controllable self‐assembly of superstructures for biological applications in living cells. Here, a two‐layer core–satellite assembly is driven by a Y‐DNA, which is designed with three nucleotide chains that hybridized through complementary sequences. The two‐layer core–satellite nanostructure (C30S5S10 NS) is constructed using 30 nm gold nanoparticles (Au NPs)...
In article number 1907468, Yingjie Du, Wei Ma, and Haibo Li propose a facile method to in‐situ synthesize CoP3/carbon polyhedron/CoO/nickel foam nano‐arrays as binder‐free anode for lithium‐ion batteries (LIBs). The superior specific capacity and rate capability of as‐designed anode are explored and highlighted. This study will enrich the application of phosphorous‐based material for LIBs with high...
Advanced functional materials enable lithium‐ion batteries to reach high specific capacity. To achieve this goal, nickel foam (NF), as current collector, is chosen to in situ form aligned nanoarrays composed of CoP3/carbon polyhedron (CP)/CoO. The CoO nanowire acts as bridge to link NF and CoP3/CP which not only reinforces the adhesion between active material and NF but also enhances the capacity...
Herein, the design of a DNA‐based chiral biosensor is described utilizing the self‐assembly of shell core–gold (Au) satellite nanostructures for the detection of mycotoxin, ochratoxin A (OTA). The assembly of core–satellite nanostructures based on OTA‐aptamer binding exhibits a strong chiral signal with an intense circular dichroism (CD) peak. The integrity of the assembly of core–satellite nanostructures...
A systematic cytotoxicity study of layered black phosphorus (BP) is urgently needed before moving forward to its potential biomedical applications. Herein, bulk BP crystals are synthesized and exfoliated into layered BP with different lateral size and thickness. The cytotoxicity of as‐exfoliated layered BP is evaluated by a label‐free real‐time cell analysis technique, displaying a concentration‐,...
Bulk black phosphorus (BP) crystals are synthesized and exfoliated into layered BP with different lateral size and thickness, in article number 1701210 by Qing Zhao, Qingfeng Yan, and Baoshan Xing, and co‐workers. The results of real‐time cell analysis (RTCA) display a concentration‐, size‐, and cell type‐dependent cytotoxicity of layered BP. The cytotoxicity originates from the intracellular ROS...
Large‐scale fabrication of organic solar cells requires an active layer with high thickness tolerability and the use of environment‐friendly solvents. Thick films with high‐performance can be achieved via a ternary strategy studied herein. The ternary system consists of one polymer donor, one small molecule donor, and one fullerene acceptor. The small molecule enhances the crystallinity and face‐on...
Self‐assembled nanostructures have been used for the detection of numerous cancer biomarkers. In this study, a gold‐upconversion‐nanoparticle (Au‐UCNP) pyramid based on aptamers is fabricated to simultaneously detect thrombin and prostate‐specific antigen (PSA) using surface‐enhanced Raman scattering (SERS) and fluorescence, respectively. The higher the concentration of thrombin, the lower the intensity...
On page 4662, a core‐satellite structure was fabricated by H. Kuang and co‐workers using partly‐complementary‐DNA‐functionalized Au NPs of 35 ± 2 nm and quantum dots (QDs) of 6 ± 1 nm. The fluorescence of the QD satellites was quenched after assembly with the Au core. In the presence of the target miR, the hairpin sequence of the core‐satellite assembly was destroyed by DNA hybridization, leading...
A high yield DNA‐driven gold‐quantum dot core–satellite is developed for miRNA detection in vitro and vivo. In the presence of the target miRNA, the DNA hairpin between core and satellite is ruined, resulting in the recovery of fluorescence. The limit of detection for miRNA‐21 detection in living cells reaches 296 copies per cell.
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